PRICE AND QUALITYBy machoteon 3/27/2015

machote would recommend this product to a friend

very good product i used to run a ATS (alggae turf scrubber) it was great but so much evaporation and maintenance needed each 7 days, also you need to design it very well and do a lot of research ( i spend a lot of hours? a lot of $ on light because u need a watt for gal now imagine in a 300 gal reef tank, also water splash etc, this gfo does the same but less work so then this is GREAT no maintance needed just replenish each month or month and a half

Great productBy juliuson 3/25/2015

julius would recommend this product to a friend

Good product I will keep buying good price

great stuffBy donthavtaon 3/7/2015

donthavta would recommend this product to a friend

I was watching Mr Saltwater Tank on u-tube ,he turned me on to bulk reef supply. I was having a big algae problem . He said to use BRS bulk Gfo in a reactor .The algae was out of the tank in 3 day /with light out . Wow this is the best my 15 year old tank has ever looker. Also it was a great price and was shipper very fast. Will buy all my need from BRS

incredableBy ttboyson 2/15/2015

ttboys would recommend this product to a friend

wow this gfo works fantastic .I had quite a algae problem going ,but in one weeks time have reduced to almost none at all

ExcellentBy luison 2/15/2015

luis would recommend this product to a friend

This works very well and I have only been using my gfo from brs. Very straight forward I run mine in a canister along with brs carbon in another canister I simply fill, install open my ball valve and rinse with tank water until dust particles at minimal or just until water comes out clear so it helps with a 1-2 gallon water change in my total 90g reef. Also I only have to change it every month and a half to two months on my bio load very good. Thanks BRS!

Good StuffBy Chrison 2/13/2015

Chris would recommend this product to a friend

Started using this GFO in a BRS single reactor mixed with Carbon after having a green dust algae bloom in a newly established reef. I noticed differences the next day. Removing the phosphates completely killed off the algae within a week. Thanks for the advice BRS, good media!!!

great productBy Andreon 2/4/2015

Andre would recommend this product to a friend

It worked great for lowering phosphates... thanks brs!

Great!By Jasonon 2/3/2015

Jason would recommend this product to a friend

Great GFO at a great price, Can't go wrong here

So far so goodBy japickaon 1/31/2015

japicka would recommend this product to a friend

I have this in a phosban 150 reactor along with the BRS lignite carbon, I am about a week in and once I got the flow right through the reactor I can tell an immediate difference. I was using seachem sea gel and it worked ok, but this combination works SOOO much better. Nuisance algae has been all but stopped. I used to have to scrape the tank sides about once a week, once I got this stuff up and running I can tell the growth on the glass has slowed WAY down. Phosphates were always pretty low in my tank, but this stuff has it basically at 0, or just above. I have not been running it long enough to probably get it all the way down yet. I not looking back I am going to run this stuff from now on.

Good ProductBy Jasonon 1/22/2015

Jason would recommend this product to a friend

Good Product

a mustBy Christopheron 12/24/2014

Christopher would recommend this product to a friend

This works wonders if you follow the instructions. I've been running it for close to a year now, and it is a staple for sure. You must use the correct amounts, and you must change it out. Don't expect results if you are to frugal with it.

Good ProductBy Wadeon 12/23/2014

Wade would recommend this product to a friend

Been using a cup of this in my reactor for about two weeks and i can already see a difference in my tank. Algae is almost gone. Phosphates are virtually at 0 now. I will continue using this product as long as I have an aquarium.

It works like it shouldBy Markon 12/23/2014

Mark would recommend this product to a friend

I've been using this in a filter sock in my hob filter. Although not the most efficient use of GFO it still does a great job of keeping my phosphates low. I only wish I had a larger setup so I could use a media reactor.

Good stuff, a bit dustyBy Ryanon 12/10/2014

Ryan would recommend this product to a friend

Just make sure you rinse it well before placing it in the system obviously. It does contain a fair amount of dust, but does the job once installed. No complaints here, you get a lot for what you pay for.

for the priceBy justynon 12/4/2014

justyn would recommend this product to a friend

A great product for the price. I run gfo a long side my carbon and changing this product out gets expensive, once I found out about BRS I was hooked with them.

Excellent gfo for the price. By Rogeron 12/3/2014

Roger would recommend this product to a friend

Using this gfo has greatly helped me keep my p04 levels down to a minimum. Compaired to the expensive other brands it's crazy not to buy this stuff.

Good ProdBy jawstone50on 11/29/2014

jawstone50 would recommend this product to a friend

Increasing the frequency off my GFO changes has decreased the speed at which my Hair Algae problem has returned. I will keep this frequency pace to hopefully completely eliminate the algae problem all together.

Great product, great price!By Jdubson 11/24/2014

Jdubs would recommend this product to a friend

I run a 37 gallon heavily stocked with fish and LPS corals. This stuff removes phosphates FAST! Just make sure you use a reactor and don't just put it in a media bag you will never get the same results just running it in a media bag in a external filter. Keeps my reef looking pristine!

fair pricedBy mcbridepcmon 11/23/2014

mcbridepcm would recommend this product to a friend

I think it's a very reasonably priced media, I'm happy.

Great productBy Travison 11/18/2014

Travis would recommend this product to a friend

What can you say about this GFO? It works and at a great price.

Outstanding quality GFOBy KEMon 11/14/2014

KEM would recommend this product to a friend

This is my second batch of GFO Granular Ferric Oxide from BRS. Fantastic results in removing Phosphates. Would recommend it to anyone wanting a good GFO product

BRS knows how to make a good product!!!By Matton 10/30/2014

Matt would recommend this product to a friend

This stuff is the best I've been using it for two weeks and the phosphates are down to near 0 I'll never run a tank without this and they're dual reactor !!! Once again an excellent product by Brs

Great for small applicationsBy Randyon 10/30/2014

Randy would recommend this product to a friend

If you aren't burning through two cups of GFO every one to two weeks, then this is a great product, bang-for-buck wise!

What can I say...By blerton 10/27/2014

blert would recommend this product to a friend

...never though I would pay so much for a jug of pulverized rust. Maybe I shouldn't have sold that old car... Could have scraped it right off the bumper. LOL! Seriously though... It's good stuff and a decent price when compared to other products.

Good StuffBy Christopheron 10/14/2014

Christopher would recommend this product to a friend

Been using this GFO for over a year and it's good stuff. Keeps my phosphates in check with no problems. Lasts a decent amount of time before I have to change. A little bit of dust to wash out before starting a new batch. No issues with it breaking down as long as you keep the water flow moderate. Works great for me. Thanks BRS

Best GFO for the cost!By Davidon 10/2/2014

David would recommend this product to a friend

I tried several other products that claimed to clear up phosphate issues but none of them compared to the amazing results I have seen using BRS GFO. It is of the highest quality and the results show it!. The only GFO I will run through my reactor!

Great dealBy Orlandoon 9/29/2014

Orlando would recommend this product to a friend

I used this mixed with small particle carbon in my reactor, and works perfectly.

perfectBy Kevinon 8/23/2014

Kevin would recommend this product to a friend

works like all the other anti phosphate products at what seems like a quarter of the price.

Rinse it first By Davidon 7/30/2014

David would recommend this product to a friend

I did my homework when it came to adding chemical media in my reef. I have no complaints with this GFO. My Phosphates levels are always nearly undetectable and no algea, just make sure you rinse well before use.

Performs well - But needs to be rinsed Very WellBy Alexon 7/19/2014

Alex would recommend this product to a friend

We used the High Capacity GFO first and it worked great. This time we decided that since we had a large reactor and plenty of space, we could use the GFO that wasn't as compacted to be a little cheaper . It worked for its primary purpose - get the phosphate out. It's just that we had to rinse it with several gallons (5-10) of water to get the dust out and it still left orange dust on the bottom of my sump. I think we will go back to the high capacity stuff after we go through this batch.

top notch phosphate removalBy swseipelon 7/6/2014

swseipel would recommend this product to a friend

This has been a great asset to my water treatment system removing phosphate due to my overfeeding my tank

Low phosphates!By Jameson 7/1/2014

James would recommend this product to a friend

Cleans the water like it says, put it in a reactor and let it work

Works GreatBy Christopher Kirklandon 6/25/2014

Christopher Kirkland would recommend this product to a friend

As always works very well, and lasts a long time. Keeps the algae at bay and the PO4 down to levels my SPS like.

Lower Phosphate Levels!By Vincenton 5/25/2014

Vincent would recommend this product to a friend

Was experiencing Phosphate levels of .10 ppm set this up with the BRS dual reactor. After 24 hrs PO4 dropped to .05 ppm and after 48 hrs PO4 dropped to .01 ppm. Thanks BRS!

AWESOME!By Stephaneon 5/23/2014

Stephane would recommend this product to a friend

I had problems with phosphates and every product i used temporary lowered my levels for only a few days, and even then only had them down to 0.04. I decided to order this product along with the BRS reactor and i am not disappointed. I had this stuff in for about 1 week and on the 2nd day, i had 0 and i mean 0 phosphates!

gfoBy alfredoon 5/19/2014

alfredo wouldn't recommend this product to a friend

great stuff definitely lowers ur po4sl

Great product just dustyBy Christopheron 5/12/2014

Christopher would recommend this product to a friend

I have used this GFO for a few months now and have had no issues other than the typical dust that comes with all gfo products. I just run 2 gallons of ro water through it and have no complaints!

Great product that does what it saysBy Ericon 5/7/2014

Eric would recommend this product to a friend

This stuff is great and absolutely reduced my phosphates. I've also used the high capacity. The bulk gfo does clump quite a bit and produces dust. I buy the high capacity now with no problems. Great stuff though.

Good Value...but needs frequent changingBy Danielon 5/3/2014

Daniel would recommend this product to a friend

This media is a great value, the cost is well worth it for the performance it provides. The only reason I didn't give it a five was for the fact that it solidifies faster than the BRS High Capacity GFO when dosing 2-part.

Awesome product By Jonathanon 5/1/2014

Jonathan would recommend this product to a friend

I have no idea why I have not started to run this in my aquarium my corals started to open better after I started to run this in the BRS Dual Reactor. This stuff works great and it last a long time as well. Also I started to see some algae growth and after a week it started to disappear.

would recommend to do friendBy Bryanon 4/19/2014

Bryan would recommend this product to a friend

Great product 2 days after adding gfo to aquarium my phosphate dropped to 0. The algae also disappeared from the aquarium also.

Great productBy Burton 4/17/2014

Burt would recommend this product to a friend

I've used pretty much all the major brands over the past several years, and I've got to say this is the best GFO in the industry. Thanks BRS for making a great product, and making it affordable to have a clear tank, also your small particle lignite carbon and is a great product as well.

Pricey but worth itBy Matt on 4/17/2014

Matt would recommend this product to a friend

I use it in a reactor and it performs as advertised.

GFO is the way to goBy Benjaminon 4/10/2014

Benjamin would recommend this product to a friend

GFO is king for phosphate removal. I run it in a reactor, and it works great!

Highly EffectiveBy Johnon 4/1/2014

John would recommend this product to a friend

Highly Effective. Make sure you follow the directions. You CAN overdose and your corals will suffer.

GREAT PRODUCT GREAT PRICEBy ROBon 4/1/2014

ROB would recommend this product to a friend

Have used this product for years with excellent results!

great stuff at a great priceBy mario on 3/30/2014

mario would recommend this product to a friend

this is great stuff at great price would recommend to use in reactor.

why pay more for fancy sounding name?By davidon 3/28/2014

david would recommend this product to a friend

works better than some other phosphate remover. easier to follow dosing directions. no need for a crazy conversion table.